Oracle游标存储过程语句
可以用Oracle已经存在的账号scott密码triger登陆进去用里面已存在的表来做试验。
- create or replace procedure lpmtest2
- as
- para1 varchar2(10);
- cursor youbiao is select ename from test where sal>1300;
- begin
- open youbiao;
- loop
- fetch youbiao into para1;
- exit when youbiao%notfound;
- dbms_output.put_line('++:'||para1);
- end loop;
- close youbiao;
- end;
代码
- create or replace procedure lpmtest2
- as
- cursor youbiao is select ename,sal,job from test where sal>1300;
- c_row youbiao%rowtype; --定义一个游标变量c_row ,该类型为游标youbiao中的一行数据类型
- begin
- open youbiao;
- loop
- fetch youbiao into c_row;
- exit when youbiao%notfound;
- dbms_output.put_line('++:'||c_row.ename||':'||c_row.sal||':'||c_row.job);
- end loop;
- close youbiao;
- end;
代码
- create or replace procedure lpmtest3
- as
- cursor c_dept is select * from dept order by deptno;
- cursor c_emp(p_dept varchar2) is select ename,sal from emp where deptno=p_dept order by ename;
- r_dept c_dept%rowtype;
- v_ename emp.ename%type;
- v_sal emp.sal%type;
- v_totalsal emp.sal%type; --用来存每个部门所有员工的总工资
- begin
- open c_dept;
- loop
- fetch c_dept into r_dept;
- exit when c_dept%notfound;
- dbms_output.put_line(r_dept.deptno||':'||r_dept.dname||'+++++++++++');
- v_totalsal:=0;
- open c_emp(r_dept.deptno);
- loop
- fetch c_emp into v_ename,v_sal;
- exit when c_emp%notfound;
- dbms_output.put_line('v_ename:'||v_ename||';'||'v_sal:'||v_sal);
- v_totalsal:=v_totalsal+v_sal;
- end loop;
- close c_emp;
- dbms_output.put_line('deptsaltotal:'||v_totalsal);
- end loop;
- close c_dept;
- end;
打印出来效果:
- 10:ACCOUNTING+++++++++++
- v_ename:CLARK;v_sal:2450
- v_ename:KING;v_sal:5000
- v_ename:MILLER;v_sal:1300
- deptsaltotal:8750
- 20:RESEARCH+++++++++++
- v_ename:ADAMS;v_sal:1100
- v_ename:FORD;v_sal:3000
- v_ename:JONES;v_sal:2975
- v_ename:SCOTT;v_sal:3000
- v_ename:SMITH;v_sal:800
- deptsaltotal:10875
- 30:SALES+++++++++++
- v_ename:ALLEN;v_sal:1600
- v_ename:BLAKE;v_sal:2850
- v_ename:JAMES;v_sal:950
- v_ename:MARTIN;v_sal:1250
- v_ename:TURNER;v_sal:1500
- v_ename:WARD;v_sal:1250
- deptsaltotal:9400
- 40:OPERATIONS+++++++++++
- deptsaltotal:0
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